Belimo Duct Sensors (T/RH)
Applications
Belimo offers a wide range of air duct sensors covering all standard measurement values: temperature, humidity, dew point, CO₂, VOC’s, pressure and frost detection.
Providing the Reliability, You Know and Expect
Belimo offers a line of duct sensors covering measurement values for temperature, humidity, enthalpy, dew point, CO₂, VOC’s, pressure, and low temperature limit detection backed with UL certification and a 5-year warranty.
Accurate Reading
Belimo duct sensors offer a snap-on NEMA 4X, IP 65 enclosure for easy installation and commissioning, field selectable ranges, high accuracy and reliability, self-calibration features, and mounted accessories are included.
Specification
Measured values: Temperature, Frost, Safety temperature, Humidity, Condensation, CO₂, VOC, Differential pressure, Volumetric flow
Output signal: 0…5 V, 0…10 V, 4…20 mA, Switch, Modbus, BACnet, Pt100, Pt1000, Ni1000, Ni1000TK5000, NTC10k (10k2), NTC10k Pre (10k3), NTC10k Carel, NTC20k
Measuring range temperature (°C): -50…150 °C, -50…160 °C, -50…250 °C, -40…80 °C, -35…70 °C, -35…100 °C, -10…15 °C, 0…15 °C, 0…50 °C, 30…90 °C, 50…80 °C, 70…130 °C
Measuring range pressure (Pa): -150…250 Pa, -100…2500 Pa, 0…7000 Pa, 20…300 Pa, 50…500 Pa, 200…1000 Pa, 500…2500 Pa, 1000…5000 Pa
Mounting type: Average, Single point, Immersion
Probe length: 50 mm, 100 mm, 140 mm, 150 mm, 156 mm, 180 mm, 200 mm, 270 mm, 300 mm, 450 mm, 3 m, 6 m
Additional features: Manual reset, Auto reset, Auto or manual reset, Internal sensor, External sensor, Auto-Zero, 2 measuring systems
Display type: LCD, LED
Consulting Engineers

Your analytical skillset makes you an invaluable asset to your organisation. Though your job is to design systems and operating sequences that meet energy codes to make facilities run more efficiently, you constantly find yourself collecting information and analysing data when it could be spent looking for new and innovative ways to save energy and improve building performance. Belimo ball valves provide:
- Models available with tight close-off up to 1000 psi to ensure dependable operation
- Spring return, non fail-safe, and electronic fail-safe actuator to drive the valve open or closed during power failure to meet sequence requirements
- NEMA 4 actuator options for harsh outdoor applications
- High Kvs full port ball valves for isolation applications
- Customer focused organisation with support documentation requirements for plans and specifications
Contractors & Distributors

- Easy selection, installation, and hassle-free service
- Models with tight close-off up to 1400 kPa to ensure dependable operation
- Range of media temperature ratings suited for steam, chilled and hot water applications
- Assembled with rotary actuators offering easy field assembly and installation saving you time
- Fast delivery with extensive support
Building Owners

Building expansion and tenant improvements are a constant challenge to your facility department and the value of your property. You are having difficulty keeping clients comfortable, identifying ways to optimise your HVAC system, and preserving capital budgets. Belimo ball valves can offer:
- High performance VB series ANSI Class I50 or 300 carbon steel bodies which are ideal for aggressive applications
- 0% leakage or ANSI Class VI rating increasing plant Delta T efficiency and building comfort
- Serviceable trim components on VS and VSS series valves reducing replacement cost
- High Kvs ball valves with minimal pressure drop, which are ideal for isolation application where pumping costs are high
- NEMA 4 actuator options for harsh outdoor applications which assure long service life
Facility Managers

Higher energy prices combined with costly building inefficiencies are making your job more and more difficult to perform. While you should be looking for new and innovative ways to reduce energy consumption and improve facility performance, you’re simply too busy dealing with employees, troubleshooting technical issues, and trying to combat costly problems with more money. Belimo ball valves can provide:
- Excellent control stability maintaining occupant comfort level
- Better control to prevent “hunting” of the control loop, increasing life span of actuator and valve
- Models available with tight close-off up to 1400 kPa to ensure dependable operation
- Easy selection, installation, and service for improvement projects or retrofits
- Fast delivery and online technical support
ESCO

You are tasked with communicating to organisations how they can save energy and improve performance — but key opportunities are passing you by. Why? Most of your time is spent searching for new product innovations that are backed by proven and reliable energy savings data. Belimo ball valves offer:
- ANSI Class VI or 0% leakage rating offering increased plant Delta T efficiency and building comfort
- Tight close-off up to 1400 kPa to provide dependable performance
- Actuator to utilise full control signal for maximum resolution and precise control
- High Kvs ball valves with minimal pressure drop. These are ideal for isolation application where pumping costs are high
- Better control to prevent “hunting” of the control loop, increasing life span of actuator and valve
Commissioning Agents / Balancing Contractors

The responsibilities of your job are complex. Between managing and reviewing projects, along with balancing and commissioning systems, you’ve got a lot on your plate. What you’re looking for is an innovative product with proven energy savings data that meets your facility’s specifications without the hassle of a complex installation and/or costly maintenance requirements. Belimo ball valves offer:
- Manual override function to provide easy troubleshooting capabilities during start-up and commissioning
- MFT models with field selectable control and feedback signal, and running time to match design sequences and controller requirements
- Trending with Multi-Function Technology (MFT) models for system diagnosis
- Self-cleaning ball valve technology to provide superior clog resistance and ensure flow is maintained in heating and cooling systems
Related products
Belimo Butterfly Valves
Applications
The Butterfly valve series is available as Wafer- and Lug-Type in DN 25 - DN 700. It meets the requirements of all HVAC applications requiring zero leakage for 2-way and 3-way applications.
The most intelligent butterfly valve on the market
Butterfly valve assemblies are available in sizes from 50 to 1200mm for 2-way application designed for piping systems requiring zero leakage. The assemblies are available with IP54 or IP66/ 67 housing and offer a range of Kvs values to provide an economic control valve solution for large high flow applications.
Game-changing butterfly control valves from DN 100 to DN 150
Say goodbye to high energy consumption, inefficiency, discomfort, and sky-high costs caused by outdated valves. We've revolutionized the industry by rendering these problems, along with the hassle of finding compatible retrofit solutions, a thing of the past. Thanks to our new butterfly control valves, ranging from DN 100 to DN 150, all these challenges have been solved for you. Join us on the journey towards sustainable and cost-effective HVAC solutions.
Learn more about our new control butterfly valves at the product launch event:
Key benefits of butterfly control valves from Belimo
The Belimo butterfly control valves are a smart, energy-efficient, and reliable solution for high-flow applications in the HVAC industry. They are perfectly suited for heating, chiller, and cooling tower applications, changeover systems, control applications for large ventilation systems, and bypass applications. The benefits of these new products include:
- JR and PR Actuator with high-performance chip allows smooth and efficient operation and ensures that the butterfly control valve operates with high precision
- Tight shut off leads to energy savings in HVAC applications as well as money savings
- Simple installation, commissioning, and maintenance with the Belimo Assistant App
- Access to diagnostic options via the App
- Application parameters option such as linear or equal percentage control characteristic is available, communication protocol is also available for BACnet MS/TP, Modbus RTU and Belimo MP-BUS
- Up to two temperature sensors can be connected to create an optimised system
- The product stands out for its quality, flexibility, reliability and durability
8 reasons for using Belimo butterfly valves
1. Flexible utilisation options
2. Absolute seal integrity
3. Energy-saving design
4. Reduced weight and low installation height
5. Transparent communication
6. Seamless integration of sensors
7. High operating safety
8. Fit for reliable control tasks
Only the best is good enough
Our commitment to continuous improvement remains unwavering as we methodically enhance our products on the basis of the latest research, the expertise of experienced engineers and customer feedback. Innovation lies at the heart of our quality guarantee, driving us to create products that meet and surpass our customers' expectations. This was also the case when we developed the butterfly control valve range from DN 100 to DN 300 together with the JR and PR actuator.
The new butterfly control valves are designed with the highest quality materials to ensure durability and reliability. In over one million test cycles, we have thoroughly tested the products under real-life conditions and in our laboratories. Robustness, reliability, and water resistance, among other things, have been successfully tested, and third parties conducted all relevant certification tests. A 5-year warranty backs Belimo products.
Belimo butterfly control valve at a glance
- Our successful product range has been further enhanced with the launch of the butterfly control valves from DN 100 to DN 150. This addition allows us to cover a wide range of applications, up to DN 300. More to come soon up to DN 450.
- Also, don't forget to check out our full range of current butterfly valves, reaching from the small size of DN 25 up to the enormous size of DN 1200.
Specification
Valve size (mm): 25 mm, 32 mm, 40 mm, 50 mm, 65 mm, 80 mm, 100 mm, 125 mm, 150 mm, 200 mm, 250 mm, 300 mm, 350 mm, 400 mm, 450 mm, 500 mm, 600 mm, 700 mm, 800 mm, 900 mm, 1000 mm, 1200 mm
kvs range (kvs): 15...40 kvs, 41...170 kvs, 171...1000 kvs, 1001...10000 kvs, 10001...42800 kvs, > 42800 kvs
Kvmax range: 41...170 Kvmax, 171...1000 Kvmax, 1001...10000 Kvmax, 10001...42800 Kvmax
End connection: Lug types, Wafer types
Close-off pressure: 1000 kPa,1200 kPa, 2200 kPa
PN: 6 / 10 / 16 PN , 10 / 16 PN , 16 PN , 25 PN
Belimo Characterised Control Valves (CCV)
Applications
The Characterised Control Valve (CCV) combines the high close-off capabilities of a ball valve with true equal percentage flow characteristic to achieve superior control.
Control and Reliability
The Characterised Control Valve (CCV) marks a true advancement in control valves. It combines the high close-off capabilities of a ball valve with a specialised disc that ensures an equal percentage flow characteristic. Since its release in 1999, over 2 million CCVs have been sold in hydronic systems. The CCV offers a comprehensive Kvs range for various applications such as air handlers, heating and cooling coils, fan coil units, unit ventilators and VAV re-heat coils.
True Advancement in Control Valves
Belimo Characterised Control Valves feature the innovative ball design and are operated by a rotary actuator. The actuators are controlled by a standard voltage for on/off, modulating, or floating point control which moves the ball valve to the position dictated by the control system. The valve is bubble-tight preventing energy losses and helps reduce operating costs.
Specification
Pattern: 2-way, 3-way
kvs range (kvs): 0.25...1.0 kvs, 1.1...3.0 kvs, 3.1...6.5 kvs, 6.6...14 kvs, 15...40 kvs, 41...170 kvs, 171...1000 kvs
Valve size (mm): 15 mm, 20 mm, 25 mm, 32 mm, 40 mm, 50 mm, 65 mm, 80 mm, 100 mm, 125 mm, 150 mm
Pipe connection: Flange, Internal thread
Belimo Fail-Safe Damper Actuators
Applications
Belimo rotary actuators with fail-safe can handle a magnitude of HVAC applications. They are available in a wide range of nominal voltages and torques.
Reliability and Safety Performance
Belimo fail-safe damper actuators have a comprehensive torque offering from 2.5 Nm to 40 Nm with direct coupled, rotary or linear travel that can handle many HVAC applications. Fail-safe actuators use brushless DC motor technology controlled by an Application Specific Integrated Circuit (ASIC) to provide stall protection, lower power consumption, higher efficiency and smaller transformer sizing.
Powerful and Reliable Control
Fail-safe actuators provide lower power consumption, increase torque and faster running times with MFT technology. Belimo actuator accessories increase application flexibility with more options in mounting and commissioning. A wide selection of universal clamps, electrical connections and running times are now available, providing you a cost effective solution with the same reliability you have come to experience with Belimo.
Specification
Torque: 1 Nm, 2 Nm, 4 Nm, 5 Nm, 8 Nm, 10 Nm, 16 Nm, 20 Nm, 40 Nm, 160 Nm
Force: 50 N, 100 N, 150 N
Voltage AC/DC: 120 V, 230 V, 24 V, 48 V, 72 V
Control type: Open/close, 3-point, Modulating, Communicative, Hybrid (communicative / analogue)
Running time: 2.5...19 s, 20...49 s, 50...79 s, 80...99 s, 100...150 s
Mechanical interface: Form fit, Universal shaft clamp, Universal shaft clamp reversible
Auxiliary switches: 1x SPDT, 2x SPDT
Electrical connection: Cable, Connector plug, Terminals
Protection category: IP20, IP54, IP66/67
Belimo Outdoor Sensors (Air)
Applications
Belimo's outdoor sensors for temperature and humidity have IP65 protection and provide all common active and passive output signals as well as Modbus and BACnet, depending on the version.
Providing the Reliability, You Know and Expect
Outdoor mounted sensors designed to measure the outside temperature for efficient heating/cooling automation.
Efficient Air Quality
Outdoor mounted sensors equipped with a NEMA 4X / IP65 rated enclosure, snap cover and mounting plate for ease of installation are available with passive or active outputs and are compatible to major building automation systems. Combined temperature and humidity sensors with selectable relative humidity, absolute humidity, dew point and enthalpy outputs are available with optional BACnet and Modbus communications. These sensors measure the outdoor air to permit the DDC system to coordinate with actual building conditions ensuring accurate and efficient air quality. All outdoor sensors are UL certified and backed by a 5-year warranty.
Specification
Measured values: Temperature, Humidity, Light
Output signal: 0...5 V, 0...10 V, 4...20 mA, Modbus, BACnet, Pt100, Pt1000, Ni1000, Ni1000TK5000, NTC10k (10k2), NTC10k Pre (10k3), NTC20k
Additional features: Internal sensor, External sensor
Belimo Quick Running Damper Actuators / Fast Running Actuators
Applications
Belimo Fast Running actuators (from 2.5 sec.) are available with rotary or linear movement.
Speed and Reliability
Belimo quick running damper actuators are available with rotary or linear actuators with open/close or modulating control. Field programmable types allow the running time, torque, operating range and position feedback to be optimised to the specific application. Cables, form-fits and clamps can be adapted individually upon request. Whether in room pressurisation fume hoods or VAV systems – the quick running actuators open and close air dampers fast to meet the critical needs of the system.
Versatile in Performance and Function
Whether in heating or cooling circuits, ventilation, extraction or VAV systems – the quick running actuators open and close air dampers at top speed. Quick running actuator ensures air performance in paint rooms, laboratories and other sensitive areas. Rugged motors, gearboxes and IP 54 housings guarantee a long service life even under the harsh conditions.
Specification
Movement type: Rotative, Linear
Fail-safe function: Non fail-safe, Fail-safe
Torque (Nm): 4 Nm, 6 Nm, 8 Nm, 16 Nm, 160 Nm
Force (N): 100 N
Stroke: 100 mm
Voltage AC/DC: 120 V, 230 V, 24 V, 48 V, 72 V
Control type: Open/close, 3-point, Modulating, Communicative, Hybrid (communicative / analogue)
Running time: 2.5...19 s, 20...49 s, 50...79 s, 80...99 s, 100...150 s, adjustable
Mechanical interface: Universal shaft clamp reversible, Universal shaft clamp, Form fit
Running time (fail-safe): 4 s, 30 s
Protection category: IP54, IP66/67
Belimo Smoke Control Damper Actuators
Applications
Powerful technology in a compact design and energy-efficient operation. Belimo smoke control damper actuators provide reliably keeping escape and rescue routes free of smoke.
Technology that Saves Lives
Belimo Smoke Control Damper Actuators designed for operation in smoke and combination fire and smoke dampers in ventilation and air-conditioning systems with a torque range from 15 Nm to 40 Nm @ 177°C. For maximum safety in all situations, Smoke Control Damper Actuators meet all codes for commercial buildings in the U.S., pass UL 555 and UL 555S at 177ºC and are tested for 30,000 open-closed cycles with approved dampers. Belimo Smoke Control Damper Actuators exceed UL’s requirement of 20,000 cycles at damper static load.
Safety in Buildings
Belimo Smoke Control Damper Actuators have an extensive torque range specifically designed for operation with fire, smoke, and combination fire and smoke dampers in ventilation and air-conditioning systems. As an integral part of the life safety system, Belimo provides high performance, low power consumption, and are compliant with Life Safety Codes and Standards.
Specification
Torque (Nm): 15 Nm, 25 Nm, 40 Nm
Voltage AC/DC: 230 V, 24 V
Control type: Open/close, Modulating
Angle of rotation: 95º, 100º
Electrical connection: Cable, Cable with connector plug
Belimo Variable Air Volume (VAV)
Applications
Belimo VAV actuators provide solutions for volumetric flow and pressure control for VAV and CAV units.
The Cost-efficient Way to Control Room Climate
Human health, well-being and work performance are crucially influenced by room climate. Belimo room and system solutions – a complete range of products for cost-efficient motorisation and control of zones and single rooms – are proven in numerous installations all over the world.
Better Working Atmosphere
The Belimo volumetric flow and pressure control products are suitable for different application: room air solution for working and public areas, pressure air application for sensitive working areas, room air and safety applications for trade and industry.
Specification
VAV application: Comfort, Process Air, Residential
VAV family: VAV-Compact, VAV-Universal
Air medium: Contaminated, Normal
Torque (Nm): 4 Nm, 5 Nm, 6 Nm, 8 Nm, 10 Nm, 20 Nm
Control type: Modulating, Communicative, Hybrid (communicative / analogue)
Fail-safe function: Non-fail-safe, Fail-safe
Belimo Zone Valves
Applications
Belimo ZoneTight™ zone valves and actuators are designed for maximum efficiency in tight spaces.
Efficient in Every Way
Designed for maximum efficiency in tight spaces, Belimo’s ZoneTight zone valve offering sets new design and performance standards for both pressure dependent and pressure independent zoning applications. Unlike short stroke globe valves, the self-cleaning ball helps minimise energy losses caused by clogging and eliminates overflow from pump pressure seat lift. In addition, high close-off capabilities ensure shut-off and allow for true equal percentage flow characteristics.
Super Compact and Versatile
Unlike short stroke globe valves, the zone tight self-cleaning ball helps minimise energy losses caused by clogging and eliminates overflow from pump pressure seat lift. Also, high close-off capabilities ensure shut-off (0% A – AB leakage) and allow for true equal percentage flow characteristics. Belimo’s ZoneTight zone valves are designed for maximum efficiency in tight spaces.
Specification
Product type: Valve, Valve-actuator unit
Pattern: 2-way, 3-way
Pressure-independent: YES, NO
kvs range (kvs): 1.1...3.0 kvs, 3.1...6.5 kvs, 6.6...14 kvs
Valve size (mm): 15 mm, 20 mm, 25 mm
Fail-safe function: Fail-safe
Voltage AC/DC: 230 V, 24 V
Control type: Open/close
Running time: 2.5...19 s
Electrical connection: Cable

